/*
* Copyright (c) 2012, 2018 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <rtems/blkdev.h>
#include <rtems/bdbuf.h>
const char rtems_test_name[] = "BLOCK 12";
#define BLOCK_COUNT 15
#define DISK_PATH "/disk"
static int block_access_counts [BLOCK_COUNT];
static int expected_block_access_counts [BLOCK_COUNT] = {
2, 0, 2, 0, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2
};
static const rtems_blkdev_bnum read_sequence [] = {
0, 2, 4, 6, 8, 10, 12, 14, 7
};
static int test_disk_ioctl(rtems_disk_device *dd, uint32_t req, void *arg)
{
int rv = 0;
if (req == RTEMS_BLKIO_REQUEST) {
rtems_blkdev_request *breq = arg;
rtems_blkdev_sg_buffer *sg = breq->bufs;
uint32_t i;
rtems_test_assert(breq->req == RTEMS_BLKDEV_REQ_READ);
for (i = 0; i < breq->bufnum; ++i) {
rtems_blkdev_bnum block = sg [i].block;
rtems_test_assert(block < BLOCK_COUNT);
++block_access_counts [block];
}
rtems_blkdev_request_done(breq, RTEMS_SUCCESSFUL);
} else {
rv = rtems_blkdev_ioctl(dd, req, arg);
}
return rv;
}
static void do_read_sequence(rtems_disk_device *dd)
{
size_t i;
for (i = 0; i < sizeof(read_sequence) / sizeof(read_sequence [0]); ++i) {
rtems_status_code sc;
rtems_bdbuf_buffer *bd;
sc = rtems_bdbuf_read(dd, read_sequence [i], &bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
sc = rtems_bdbuf_release(bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
}
}
static void test(void)
{
rtems_status_code sc;
int fd;
int rv;
rtems_disk_device *dd;
sc = rtems_blkdev_create(
DISK_PATH,
1,
BLOCK_COUNT,
test_disk_ioctl,
NULL
);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
fd = open(DISK_PATH, O_RDWR);
rtems_test_assert(fd >= 0);
rv = rtems_disk_fd_get_disk_device(fd, &dd);
rtems_test_assert(rv == 0);
rv = close(fd);
rtems_test_assert(rv == 0);
do_read_sequence(dd);
rtems_bdbuf_purge_dev(dd);
do_read_sequence(dd);
rtems_test_assert(
memcmp(
block_access_counts,
expected_block_access_counts,
sizeof(block_access_counts)
) == 0
);
rv = unlink(DISK_PATH);
rtems_test_assert(rv == 0);
}
static void Init(rtems_task_argument arg)
{
TEST_BEGIN();
test();
TEST_END();
rtems_test_exit(0);
}
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
#define CONFIGURE_BDBUF_BUFFER_MIN_SIZE 1
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE 1
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE BLOCK_COUNT
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>